If you’re already experienced with weightlifting and train your legs twice a week for 8 weeks with hard sets, your muscles will grow whether you take short breaks between reps or not.

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Evidence from Studies

Supporting (1)

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Cluster sets and traditional sets elicit similar muscular hypertrophy: a volume and effort-matched study in resistance-trained individuals

Randomized Controlled Trial

Human

2025 Jun

This study found that doing leg exercises in short bursts with breaks (cluster sets) or in long sets without breaks (traditional sets) both made people’s thighs bigger and stronger—so neither method is better than the other when you do the same total work.

Contradicting (0)

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No contradicting evidence found

Source Study

Cluster sets and traditional sets elicit similar muscular hypertrophy: a volume and effort-matched study in resistance-trained individuals

Score: 45

DOI: 10.1007/s00421-025-05712-6

Similar Assertions

Doing leg presses and leg extensions for 12 weeks both make your main thigh muscles bigger about the same amount, but leg presses also make your butt and inner thigh muscles grow more, while leg extensions make the front part of your thigh (rectus femoris) grow much more.

82%

Doing leg extensions makes the front thigh muscle bigger along its whole length more than doing squats, especially near the knee.

82%

Doing leg presses and leg extensions for 12 weeks both make your main thigh muscles bigger in about the same way, but only leg extensions make the front part of your thigh (rectus femoris) grow significantly.

79%

If you want to make the front part of your thigh (rectus femoris) bigger, leg extensions work better than leg presses — after 12 weeks, leg extensions made it grow 12% more than leg presses did.

79%

Doing leg extensions for 8 weeks makes the front thigh muscle bigger along its whole length more than doing squats, especially near the knee.

79%